Title :
AC losses of Ag-(Bi,Pb)SrCaCuO-2223 tapes in combination of transverse external magnetic field and transport current
Author :
Ciszek, M. ; Glowacki, B.A. ; Ashworth, S.P. ; Campbell, A.M. ; Evetts, J.E.
Author_Institution :
Interdisciplinary Res. Centre in Superconductivity, Cambridge Univ., UK
fDate :
6/1/1995 12:00:00 AM
Abstract :
The authors present the results of measurements of the AC transport (self-field) and magnetic losses on silver sheathed (Bi,Pb)SrCaCuO-2223 tapes prepared by the powder in tube method. In the frequency range 30-540 Hz the transport current losses are hysteretic in nature. Losses arising from AC external magnetic field (frequency range 65-207 Hz, amplitude up to 60 mT) are compared with losses generated by AC transport currents. The measured transport loss voltage depends strongly on the position of the potential taps on the surface of the tapes. Losses due to combined AC applied magnetic fields and transport currents are also reported.<>
Keywords :
bismuth alloys; cable sheathing; calcium alloys; copper alloys; high-temperature superconductors; lead alloys; loss measurement; losses; magnetic fields; power cable testing; power cables; strontium alloys; superconducting cables; superconducting tapes; (Bi,Pb)SrCaCuO-2223 tapes; 30 to 540 Hz; 60 mT; 65 to 207 Hz; AC losses; Ag; BiSrCaCuO; PbSrCaCuO; conductors; high-T/sub c/ superconductor; magnetic losses; measurements; potential taps; powder in tube method; sheath; transport current; transverse external magnetic field; AC generators; Frequency; Loss measurement; Magnetic field measurement; Magnetic fields; Magnetic hysteresis; Magnetic losses; Powders; Silver; Voltage measurement;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
